New answers tagged interpolation
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Transmitting data with QPSK using an SDR
how do I present to the symbols to the filter? Do I feed in 4 symbols worth of samples (40 samples), with the first sample in each 10 set to the mapped value and the rest set to 0?
Yes -- but (as you ...
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Transmitting data with QPSK using an SDR
I know I need to do matched filtering before I transmit with an rrc filter.
No and not really.
No, because matched filtering happens in the receiver. If you've designed your transmit waveform ...
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Accepted
LTE PSS Channel Estimation for coarse SSS Equalization
Every 5 ms it is sent an OFDM Symbol which carries a PSS. So by using the block based channel estimation it might be possible to interpolate these PSS channel responses over time to get a $ h_{x_u}(f,...
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Estimating spectrum with regularly missing samples from data
This answer to my related question on nonuniform sampling gives the formula for how the spectrum is distorted by this type of periodic non-uniform sampling.
If you're more interested in simply ...
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Estimating spectrum with regularly missing samples from data
In fact, there are tools that can provide a good DFT estimate of s(t).
I recommend the EDFT program written in Matlab code and available on fileexchange. To calculate the DFT, first create input sn ...
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Accepted
On FFT, interpolating signal vs extending signal in time
Interpolating in time causes Frequncy domain to scale completly, also the boundaries of frequency domain changes accordingly, since nyquist frequiency will be changed.
On time extentioning, Nyquist ...
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